Accurate measurement of pitch-based carbon fiber electrical resistivity

Polimeros,Ciencia e Tecnologia

article

Caroline Jovine Bouças Guimarães¹  Alcino Palermo de Aguiar¹  Alexandre Taschetto de Castro² 

[1] Departamento de Química, Instituto Militar de Engenharia – IME;Seção de Tecnologia de Materiais de Carbono – STMC, Centro Tecnológico do Exército – CTEx

关键词: carbon fiber;    four-probe method;    mesophase-pitch;    electrical resistivity;   

DOI  :  10.1590/0104-1428.08720

来源: Brazilian Academy Of Neurology

【 摘 要 】

This study investigated the appropriate methodology required to measure single carbon fibers electrical resistivity. Twoand four-probe methods were evaluated for this measurement. Comparing results for single filaments of pitch-based and PAN-based fibers shows that the two-probe method gives acceptable results for PAN-based fibers, but much higher deviations from adjusted resistivity for pitch-based fibers (>15%). The four-probe method shows small deviations (<1%) for both precursors and is the most suitable for measurements of pitch-based carbon fibers. The four-probe method gives higher accuracy than the two-probe for all samples tested.

【 授权许可】

Unknown